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JUDSO N SPAULDING, OF PROVIDENCE, RHODE ISLAND.

DEVICE FOR HOIST ING AND LOWERING WEIGHTS.

EJ'PECIPICATION forming part of Letters Patent No. 309,002, datedDecember 9, 1884.

Application filed October 13, 1884. (No model.)

To all whom it may concern:

Be it known that I, JUDSON SPAUL'DING, a citizen of the United States,residing at Providenee, in the county of Providence and State of IthodeIsland, have invented certain new and useful Improvements in Devices forHoisting and Lowering W'cights; and I do hereby declare the following tobeat full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and

to letters or figures of reference marked there on, which form a part ofthis specification.

My invention relates to windlasses adapted to be used in hoisting andlowering weights; and it consists, essentially, of a suitably-mountedsleeve or bushing carrying a ratchet and short lever-arm, the latterhaving pivoted thereto a supplemental crank-lcver provided with acam-shaped projection adapted, when hoisting, to frictionally engage awheel secured to the end of the drum-shaft, said shaft passing looselythrough the ratchet and arm. The crank-lever is further provided with anextension, also adapted to frietionally engage said wheel as a brakewhen employed in lowering the weight. A spring connects the arm andcrank, all as will be more fully hereinafter set forth.

The object of the invention is to produce a more efficient and lessexpensive combined frictional hoisting and lowering device than has beenmade heretofore. 1

In the accompanying drawings, Figure 1 represents a plan view of ahoisting arrangement embodying the invention. Fig. 2 is a front end viewshowing the levers and frictionwheel in position for hoisting a weight.Fig.

3 is a similar view showing the position of the lever in lowering theload; and Fig. 4; represents a plan view of Fig. 2, also showing thebearing'cap removed and the sleeve in cen ,tral horizontal section.

The following is a description of the invention and the manner of itsoperation.

A, referring again to the drawings, designates the shaft, provided witha drum, 1), and rope cl, the rear end of the shaft adapted to revolvelinthe bearing E, secured to aframin g, T, as common.

13, Fig. 4, is a sleeve or bushing revolving in the bearing E,having theratchet C formed at its inner end, the opposite or front end of thebushing having a short arm, D, secured thereto. The shaft passes looselythrough this bushing, and projectstherefroni in front for the purpose ofcarrying the frictionwhecl F, and to which it isrigidly secured.

H designates the operating lever or crank, which is fulcrumed at e tothe arm D, the upper portion, H-, of the hub thereof being camshaped,and adapted to engage with the periphery of the wheel F; The lowerportion of said hub is elongated to form the curved arm H,which extendsunder and partially around the friction-wheel, its concave surface beinglined with leather, Z, or other suitable material,

and adapted also to engage the periphery of the wheel F, all as fullyshown.

Secured to the end of the arm D is a spring, 8, which extends along theback of the crank H, its free end resting upon a lug or pin, 8, theobject of this spring being to overcome the unbalanced portion of thecrank at any position, and at the same. time to release the cam H fromthe frictiouwheel after the pressure upon the crank has been removed.

The operation is as follows: \Vishingto raise a bucket of water or otherweight secured to a cord, d, and drum D, the handle it of the crank H isgrasped by the operator and. revolved ahead in the arrow direction, Fig.2, which movement first overcomes the resistance of the spring s, thuscausing the cam H to impinge against the wheel F, when, new, bycontinuous revolutions of the crank,the load is hoisted, the ratchet Oand its pawl c adapting it to be suspended at any point as common, thecrank then standing relatively to the Wheel F as shown in Fig. 2, theelongation H not being in contact with said wheel. As the weight orresistance is increased, so also in proportion is the bite or pressureof the surfaces in contact of the said cam and wheel increased. If,now,the load is to be lowered, the crank is first vibrated slightly inthe opposite direction, which overcomes the resistance of the spring 8,and at the same time releases the cam from contact with thefrictionwheel. The load now begins to fall,and so continues untilgradually brought to rest by means of increased pressure applied to thecrank, (in the arrow direction, Fig. 3,) which causes the ICO surface Zof the brake H to bear against the 1111- der side of thefriction-wheel,all as fully shown in said figure. As the pressure uponthe crank is removed,the weight begins to descend in an increasingratio. The operator, however, is enabled to control its descent, andeven to stop the load at any desired point.

It is obvious that the improvement herein shown and described is adaptedto be used in any ordinary hoistingmachine, although it is moreespecially designed to be combined with the drum, ($50., of well-curbs.I contemplate, however, its adaptation and use with a conr pound orgeared hoist for heavy weights, such as cranes, 85c.

I do not claim, broadly, a frictionally-connectecl combined hoisting andlowering device; but i What I do claim, and desire to secure by LettersPatent, is-

' 1. The combined hoisting and lowcringdcvice herein described,consisting of a sleeve or bushing suitably mounted, having secured orformed thereon a ratchet and lever-arm,

the latter having fulcrumed thereto a springconnected crank providedwith a cam-shaped projection and brake-arm, in combination with adrum-shaft and friction-whee], said wheel being secured to the end ofthe shaft which passes loosely through said bushing, whereby the cam andbrake are adapted to frictionally engage said wheel in hoisting andlowering, respectively,substantially as shown and set forth.

2. The combinati0n,with the pivoted crank H, provided with the cam H andbrake H, and loosely-mounted hollow arm D,carrying a spring, 8, of thefriction-wheel F, secured to the end of the driving-shaft A,substantially as shown, and for the purpose set forth.

3. The bushing or sleeve B, with its ratchet G and arm D,suitablymounted, provided with a spring, 8, and fulcrum e, in combination withthe crank H, having a cam, H and brake H formed thereon,whereby a shaftpassing loosely through the longitudinal axis of said bushing andcarrying a 1riction-wheel,F,is adapted to revolve in eitherdirection,substantially as shown and set forth.

In testimony whereof I have affixed my sigo nature in presence of twowitnesses.

" JUDSON SPAULDING.

\Vitnesses:

GEO. H. REMINGTON, E. E. BAKER.

